Buick Regal 2018-2024 Service Manual / Accessories and Equipment / Lighting / Diagnostic Information and Procedures
Buick Regal: Diagnostic Information and Procedures
- DTC B1395
- DTC B1480
- DTC B2530
- DTC B2545
- DTC B255D
- DTC B255F
- DTC B256C or B256D
- DTC B2570
- DTC B2575 or B2699
- DTC B257A
- DTC B257C or B257D
- DTC B2580 (T4A)
- DTC B2580 or B3866 (T4L)
- DTC B2585 or B3867
- DTC B258A (TT4)
- DTC B258A (TT6, TT2)
- DTC B258A or B258E
- DTC B2590 or B2595
- DTC B259A or B259B
- DTC B259C or B259D
- DTC B25FA or B25FB
- DTC B25FC or B25FD
- DTC B25F4 or B25F5
- DTC B25F6 or B25F7
- DTC B25F8 or B25F9
- DTC B2600 or B2605
- DTC B260B or B260C
- DTC B2610
- DTC B2615
- DTC B2625
- DTC B263A
- DTC B2652
- DTC B2740
- DTC B3410 or B3420
- DTC B3415
- DTC B3415 or B3425
- DTC B3435 or B3440
- DTC B3445 or B3878
- DTC B3588
- DTC B3596
- DTC B3650
- DTC B3806
- DTC B3881 or B3882
- DTC B3883
- DTC B3884
- DTC B388B or B388C
- DTC B3948 or B3949
- DTC B3950 or B3951
- DTC C0277 or C0890
- DTC C0297
- DTC P0504
- Symptoms - Lighting
- Adaptive Forward Lighting Malfunction
- Automatic Light Malfunction
- Backup Lamps Malfunction
- Cornering Lamps Malfunction
- Courtesy Lamps Malfunction
- Daytime Running Lamps Malfunction
- Dome Lamps Malfunction
- Front Fog Lamps Malfunction
- Rear Fog Lamps Malfunction
- Glove Box Illumination Malfunction
- High Intensity Discharge Lamp Malfunction
- Headlamps Malfunction
- Headlamp Leveling Malfunction (Manual)
- Headlamp Leveling Malfunction (Automatic)
- Interior Backlighting Malfunction
- Lights On Indicator Malfunction
- Park, License, and/or Tail Lamps Malfunction
- Rear Compartment Lamp Malfunction
- Stop Lamps Malfunction
- Sunshade Illumination Malfunction
- Turn Signal Lamps and/or Indicators Malfunction
READ NEXT:
DTC B1395
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
DTC B1480
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
DTC B2530
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diag
SEE MORE:
Description and Operation
DISC BRAKE SYSTEM DESCRIPTION AND OPERATION
System Component Description
The measurement used to identify the brake system indicates the minimum wheel
size that must be
installed. For example: If a 16 inch brake system is identified, the smallest
wheel that can be installed is a
16 inch wheel.
Th
DTC B125A (IO5/IO6)
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refer to Diagnostic Procedure Instructions for an overview of each
diagnostic category.
DTC Descripto
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